Injector



UNITED STATES PATENT OFFICEO WILLIAM. R. PARK, OF TAUNTON, MASSACHUSETTS.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 370,405, dated September 27, 1887.

Application filed September 13, 1886. Serial No. 213,396.

To all whom it may concern:

Be it known that 1, WILLIAM B. PARK, Of Tannton, in the county of Bristol and State of Massachusetts, have invented an Improved Injector, of which the following isaspecification, reference being had to the accompanying drawings, forming apart hereof, and which illustrates by a central longitudinal section the best form of my improved apparatus.

My apparatus in its general construction is the same as that shown in my application Serial No. 191,568, and consists of two steam-nozzles, G and H, and their combining and delivery tubes 9 h h, with their appliances, substantially as shown in that application, the tube 9 being open to the water-supply at g. The steam-nozzles are supplied with steam from the chambers A and B; and my present invention consists in the combination, with the apparatus described in my application above referred to, of the two steam-cham bers A and B and a double valve, or b, so that steam enters the chamber A first and flows from that chamber to the first nozzle, G, and then by the further motion of the double valve the steam is admitted to the chamber B and flows from that chamber to the second nozzle, H. This is a practical improvement upon my-injector for certain uses.

In the drawing the steam-supply pipe is connected to the apparatus at O, the water- Model.)

supply pipe at D, and the feed-pipe leading to the boiler at E. When the valve a is on its seat a, the steam is shut off from the apparatus; but when the valve a is moved away from its seat by the lever F steam flows past it into chamber A, and from chamber A through passage of to the nozzle G; but, as will be clear from the drawing, the steam in chamber A is shut off from chamber B until the plunger-valve gets clear of the cylinder 1), when the steam will flow freely past valve b into chamber B, and thence through the second nozzle,'H, which I have shown as an annular nozzle in free communication with chamber B.

The operation will be clear to all skilled in the art without further description.

What I claim as my invention is In combination, the steam-supply G, the chambers A and B, the double valve a b, the passage a leading from chamber A, the watersupply D, the nozzle G, the tube 9, open to the water-supply not only at the mouth, but also at g, and the nozzle H and the tubes h h, all arranged and operating substantially as described.

WM. R. PARK.

Witnesses:

O. B. MAYNADIER, J. E. MAYNADIER. 

